OpenSCAD and CadQuery working together in dev

Still clean up of the backend/lamdas, and there's a conda permission
issue when deploying the Cadquery image

api/src/docker/aws-emulator.js

@@ -1,7 +1,6 @@
 const express = require('express')
 var cors = require('cors')
 const axios = require('axios')
-const stream = require('stream')
 const app = express()
 const port = 8080
 app.use(express.json())
@@ -10,14 +9,14 @@ app.use(cors())
 const invocationURL = (port) =>
   `http://localhost:${port}/2015-03-31/functions/function/invocations`
 
-app.post('/render', async (req, res) => {
+app.post('/openscad/preview', async (req, res) => {
   const { data } = await axios.post(invocationURL(5052), {
     body: Buffer.from(JSON.stringify(req.body)).toString('base64'),
   })
   res.status(data.statusCode)
   res.send(data.body)
 })
-app.post('/cadquery', async (req, res) => {
+app.post('/cadquery/stl', async (req, res) => {
   console.log('making post request to 5060')
   const { data } = await axios.post(invocationURL(5060), {
     body: Buffer.from(JSON.stringify(req.body)).toString('base64'),

api/src/docker/cadquery/cadquery.js

@@ -1,15 +1,7 @@
-const { runScad, stlExport } = require('./runScad')
+const { runCQ } = require('./runCQ')
 const middy = require('middy')
 const { cors } = require('middy/middlewares')
 
-const health = async () => {
-  console.log('Health endpoint')
-  return {
-    statusCode: 200,
-    body: 'ok',
-  }
-}
-
 // cors true does not seem to work in serverless.yml, perhaps docker lambdas aren't covered by that config
 // special lambda just for responding to options requests
 const preflightOptions = (req, _context, callback) => {
@@ -24,12 +16,12 @@ const preflightOptions = (req, _context, callback) => {
   callback(null, response)
 }
 
-const render = async (req, _context, callback) => {
+const stl = async (req, _context, callback) => {
   _context.callbackWaitsForEmptyEventLoop = false
   const eventBody = Buffer.from(req.body, 'base64').toString('ascii')
   console.log(eventBody, 'eventBody')
   const { file, settings } = JSON.parse(eventBody)
-  const { error, result, tempFile } = await runScad({ file, settings })
+  const { error, result, tempFile } = await runCQ({ file, settings })
   if (error) {
     const response = {
       statusCode: 400,
@@ -55,41 +47,7 @@ const render = async (req, _context, callback) => {
   }
 }
 
-const exportstl = async (req, _context, callback) => {
-  _context.callbackWaitsForEmptyEventLoop = false
-  const eventBody = Buffer.from(req.body, 'base64').toString('ascii')
-  console.log(eventBody, 'eventBody')
-  const { file } = JSON.parse(eventBody)
-  const { error, result, tempFile } = await stlExport({ file })
-  if (error) {
-    const response = {
-      statusCode: 400,
-      body: { error, tempFile },
-    }
-    callback(null, response)
-  } else {
-    console.log(`got result in route: ${result}, file is: ${tempFile}`)
-    const fs = require('fs')
-    const stl = fs.readFileSync(`/tmp/${tempFile}/output.stl`, {
-      encoding: 'base64',
-    })
-    console.log('encoded stl', stl)
-    const response = {
-      statusCode: 200,
-      headers: {
-        'content-type': 'application/stl',
-      },
-      body: stl,
-      isBase64Encoded: true,
-    }
-    console.log('callback fired')
-    callback(null, response)
-  }
-}
-
 module.exports = {
-  health: middy(health).use(cors()),
-  exportstl: middy(exportstl).use(cors()),
-  render: middy(render).use(cors()),
+  stl: middy(stl).use(cors()),
   preflightOptions,
 }

api/src/docker/cadquery/runCQ.js

@@ -3,7 +3,7 @@ const { promises } = require('fs')
 const { writeFile } = promises
 const { nanoid } = require('nanoid')
 
-module.exports.runScad = async ({
+module.exports.runCQ = async ({
   file,
   settings: {
     size: { x = 500, y = 500 } = {},
@@ -29,20 +29,6 @@ module.exports.runScad = async ({
   }
 }
 
-module.exports.stlExport = async ({ file } = {}) => {
-  const tempFile = await makeFile(file)
-
-  try {
-    const result = await runCommand(
-      `openscad -o /tmp/${tempFile}/output.stl /tmp/${tempFile}/main.scad`,
-      300000 // lambda will time out before this, we might need to look at background jobs if we do git integration stl generation
-    )
-    return { result, tempFile }
-  } catch (error) {
-    return { error, tempFile }
-  }
-}
-
 async function makeFile(file) {
   const tempFile = 'a' + nanoid() // 'a' ensure nothing funny happens if it start with a bad character like "-", maybe I should pick a safer id generator :shrug:
   console.log(`file to write: ${file}`)

api/src/docker/docker-compose.yml

@@ -13,25 +13,25 @@ services:
     ports:
       - "5051:8080"
 
-  openscad-render:
+  openscad-preview:
     image: openscad
     # build: ./openscad/.
-    command: openscad.render
+    command: openscad.preview
     # networks:
     #   - awsland
     ports:
       - "5052:8080"
 
-  openscad-export:
+  openscad-stl:
     image: openscad
     # build: ./openscad/.
-    command: openscad.exportstl
+    command: openscad.stl
     ports:
       - "5053:8080"
 
-  cadquery-render:
+  cadquery-stl:
     build: ./cadquery/.
-    command: openscad.render
+    command: cadquery.stl
     ports:
       - 5060:8080
 

api/src/docker/openscad/openscad.js

@@ -24,7 +24,7 @@ const preflightOptions = (req, _context, callback) => {
   callback(null, response)
 }
 
-const render = async (req, _context, callback) => {
+const preview = async (req, _context, callback) => {
   _context.callbackWaitsForEmptyEventLoop = false
   const eventBody = Buffer.from(req.body, 'base64').toString('ascii')
   console.log(eventBody, 'eventBody')
@@ -55,7 +55,7 @@ const render = async (req, _context, callback) => {
   }
 }
 
-const exportstl = async (req, _context, callback) => {
+const stl = async (req, _context, callback) => {
   _context.callbackWaitsForEmptyEventLoop = false
   const eventBody = Buffer.from(req.body, 'base64').toString('ascii')
   console.log(eventBody, 'eventBody')
@@ -89,7 +89,7 @@ const exportstl = async (req, _context, callback) => {
 
 module.exports = {
   health: middy(health).use(cors()),
-  exportstl: middy(exportstl).use(cors()),
-  render: middy(render).use(cors()),
+  stl: middy(stl).use(cors()),
+  preview: middy(preview).use(cors()),
   preflightOptions,
 }

api/src/docker/serverless.yml

@@ -18,6 +18,8 @@ provider:
       # this image is built locally and push to ECR
       openscadimage:
         path: ./openscad/
+      cadqueryimage:
+        path: ./cadquery/
   apiGateway:
     metrics: true
     binaryMediaTypes:
@@ -52,7 +54,7 @@ provider:
 
 functions:
   # see preflightoptions comment in openscad.js
-  preflightrender:
+  preflightopenscadpreview:
     image:
       name: openscadimage
       command:
@@ -61,9 +63,9 @@ functions:
         - '/entrypoint.sh'
     events:
       - http:
-          path: render
+          path: openscad/preview
           method: options
-  preflightexport:
+  preflightopenscadstl:
     image:
       name: openscadimage
       command:
@@ -72,30 +74,54 @@ functions:
         - '/entrypoint.sh'
     events:
       - http:
-          path: export
+          path: openscad/stl
           method: options
-  render:
+  openscadpreview:
     image:
       name: openscadimage
       command:
-        - openscad.render
+        - openscad.preview
       entryPoint:
         - '/entrypoint.sh'
     events:
       - http:
-          path: render
+          path: openscad/preview
           method: post
     timeout: 15
-  exportStl:
+  openscadstl:
     image:
       name: openscadimage
       command:
-        - openscad.exportstl
+        - openscad.stl
       entryPoint:
         - '/entrypoint.sh'
     events:
       - http:
-          path: export
+          path: openscad/stl
+          method: post
+    timeout: 30
+
+  preflightcadquerystl:
+    image:
+      name: cadqueryimage
+      command:
+        - cadquery.preflightOptions
+      entryPoint:
+        - '/entrypoint.sh'
+    events:
+      - http:
+          path: cadquery/stl
+          method: options
+  cadquerystl:
+    image:
+      name: cadqueryimage
+      command:
+        - cadquery.stl
+      entryPoint:
+        - '/entrypoint.sh'
+    events:
+      - http:
+          path: cadquery/stl
           method: post
     timeout: 30
 #    The following are a few example events you can configure